Malware

Rustock, Xarvester Spambots Capable of Sending 25,000 Messages Per Hour, Says New Study

A recent study suggests Rustock and Xarvester malware provided the most efficient spambot code, enabling individual zombie computers to send 600,000 spam messages each over a 24 hour period. "Over the past few years, botnets have revolutionized the spam industry and pushed spam volumes to epidemic proportions despite the best efforts of law enforcement and the computer security industry. Our intention was to better understand the origins of spam, and the malware that drives it," said Phil Hay, senior threat analyst, TRACElabs (a research arm of security company Marshal8e6)... more

Q3 Saw Massive Virus Volumes While Spam Remained Steady

Spam and virus trends in Q3'10 confirm that spammers are still hard at work distributing malicious content in new and creative ways, according to the latest reports. The latest spam and virus trends report is produced by Postini, Google's email security and archiving service that, according to the company, processes more than 3 billion email messages per day and more than 50,000 businesses. more

Feds Ask for DNSChanger Deadline Extension As Millions of PCs Could Be Cut Off from the Web

Brian Krebs reporting in Krebs on Security: "Millions of computers infected with the stealthy and tenacious DNSChanger Trojan may be spared a planned disconnection from the Internet early next month if a New York court approves a new request by the U.S. government. Meanwhile, six men accused of managing and profiting from the huge collection of hacked PCs are expected to soon be extradited from their native Estonia to face charges in the United States." more

Defending the Network Several Times Over

Modern networks can be attacked in a variety of ways, meaning that companies need different types of protection. This article explains some of the risks involved, and provides some easy ways to deal with them. more

ACMA: 30,000 PC’s Infected in Australia Per Day

Anti-spam and malware enforcement agency ACMA reports on this (shocking high?) figure. Keep this up and ca. 50% of the Australian population is infected within a year. I remember a presentation from Sweden only a few years ago, that there were only a little over a thousand infected pc's in Sweden. (Reactions were: that can't be correct. Too low) Do you know what the numbers are for your country and maybe more importantly what your government and/or Industry is/are doing about it? more

Malware Increasingly Uses DNS As Command and Control Channel to Avoid Detection

Number of malware threats that receive instructions from attackers through DNS is expected to increase, and most companies are not currently scanning for such activity on their networks, security experts said at the RSA Conference 2012 on Tuesday. While most malware-generated traffic passing through most channels used for communicating with botnets (such as TCP, IRC, HTTP or Twitter feeds and Facebook walls) can be detected and blocked, it's not the case for DNS (Domain Name System) and attackers are taking advantage of that, said Ed Skoudis, founder of Counter Hack Challenges and SANS fellow. more

Creating, Protecting and Defending Brand Equity - Part 3

In the final of my three-part post series about how to protect your trademark against misuse, I will focus on proactive searching and policing and the benefits these can provide to brand owners. ... Proactive searching and policing of your brand is a prudent step in making sure your name is protectable. This is an advisable first step in naming a product or service. more

DNSChanger Trojan Still Running on Half of Fortune 500s, US Govt

More than two months after authorities shut down a massive Internet traffic hijacking scheme, the malicious software that powered the criminal network is still running on computers at half of the Fortune 500 companies, and on PCs at nearly 50 percent of all federal government agencies, new research shows," reports Brian Krebs. more

Mega International DNS Malware Operation Dismantled, Reports FBI

FBI today announced six Estonian nationals have been arrested and charged with running a sophisticated Internet fraud ring that infected millions of computers worldwide with a virus and enabled the thieves to manipulate the multi-billion-dollar Internet advertising industry. Users of infected machines were unaware that their computers had been compromised -- or that the malicious software rendered their machines vulnerable to a host of other viruses. more

Spam Peaked at 200 Billion per Day in 2008, Botnets Nexus of Criminal Activity, Says Cisco

In a 52 page security report released by Cisco, the company has confirmed what has been consistently been observed through out this year: "the Internet-based attacks are becoming increasingly sophisticated and specialized as profit-driven criminals continue to hone their approach to stealing data from businesses, employees and consumers." The 2008 edition of the report has specified the year's top security threats and offers recommendations for protecting networks against attacks that are propagating more rapidly, becoming increasingly difficult to detect, and exploiting technological and human vulnerabilities. more

U.S. Department of Transportation Issues Federal Cybersecurity Guidance to Automotive Industry

U.S. Department of Transportation issues Federal guidance to the automotive industry for improving motor vehicle cybersecurity. The guidance covers cybersecurity best practices for all motor vehicles, individuals and organizations manufacturing and designing vehicle systems and software. more

Is There Really a Mobile Malware Pandemic?

Much of the discussion regarding mobile security revolves around the growing "pandemic" of mobile malware. It's not uncommon to see headlines reporting the discovery of large numbers of new malware samples. However, as Google recently pointed out, with quite a bit of data to support them, there's little discussion of real world impact of these discoveries. This raises a number of relevant questions. Is the average user likely to be infected? Where does this malware come from? These are questions that deserve analysis and thoughtful responses. more

Defending Against the Hackers of 1995

Two factor authentication that uses an uncopyable physical device (such as a cellphone or a security token) as a second factor mitigates most of these threats very effectively. Weaker two factor authentication using digital certificates is a little easier to misuse (as the user can share the certificate with others, or have it copied without them noticing) but still a lot better than a password. Security problems solved, then? more

WikiLeaks Releases CIA Malware Implants Called Assassin and AfterMidnight

The recent heavy news coverage of WannaCry has overshadowed the latest WikiLeaks release of critical CIA malware documentation: user manuals for two hacking tools named AfterMidnight and Assassin. more

IoT Botnet Source Code Responsible for Historic Attack Has Been Publicly Released

The source code for the IoT botnet 'Mirai' has been released," warns security expert Brian Krebs whose own website was targeted with the same botnet resulting in the historically large DDoS attack last month. more